Smoke detector



FIG. 1 is a perspective view of the smoke detector according to my new design;

FIG. 2 is a top view of the smoke detector according to my new design;

FIG. 3 is a side view of the smoke detector shown in FIG. 1; and,

FIG. 4 is an additional side view of the smoke detector shown in FIG. 1. 

The ornamental design for a smoke detector, as shown and described. 